shake a leg

Shake a leg, they’re getting impatient.

快动身吧，他们已经等得不耐烦了。

Yeah. The whole place was packed. Today is the last day of the sale, so you'd better shake a leg before everything is gone.

是呀！ 整个地方（店）都挤满人了。今天是减价的最后一天， 所以你最好在它们卖光前赶快去。

You'd better shake a leg or you'll be late again.

你最好动作快点，不然又要迟到了。